#include<bits/stdc++.h>
#define int long long
#define ls(x) ((x)*2)
#define rs(x) ((x)*2+1)
#define Debug(...) fprintf(stderr, __VA_ARGS__)
#define For(i,a,b) for(int i=a,i##end=b;i<=i##end;i++)
#define Rof(i,a,b) for(int i=a,i##end=b;i>=i##end;i--)
#define rep(i,  b) for(int i=1,i##end=b;i<=i##end;i++)
using namespace std;
const int N=1e6+5,base=999983,Mod=998244353;
//char buf[(1<<21)+5],*p1,*p2;
//#define getchar() (p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<21,stdin),p1==p2)?EOF:*p1++)
inline void chmx(int &x,int y){(x<y)&&(x=y);}
inline void chmn(int &x,int y){(x>y)&&(x=y);}
inline void Add(int &x,int y){(x=x+y+Mod)%=Mod;}
inline int read(){
	int f=0,x=0;
	char ch=getchar();
	while(!isdigit(ch)){f|=(ch=='-');ch=getchar();}
	while(isdigit(ch)){x=(x<<3)+(x<<1)+(ch^48);ch=getchar();}
	return f?-x:x;
}
void print(int n){
    if(n<0){
        putchar('-');
        n*=-1;
    }
    if(n>9) print(n/10);
    putchar(n%10+'0');
}
int n;
int a[N];
int l[N],r[N];
int f[N],qzh[N];
int sta[N],tp;
signed main(){
	freopen("after.in","r",stdin);
	freopen("after.out","w",stdout);
	// ios::sync_with_stdio(false);
	// cin.tie(0); cout.tie(0);
	n=read();
	For(i,1,n) a[i]=read();
	a[0]=a[n+1]=1e9;
	For(i,0,n+1){
		while(tp&&a[sta[tp]]<a[i]){
			r[sta[tp]]=i-1;
			tp--;
		}
		l[i]=sta[tp]+1;
		sta[++tp]=i;
	}
	f[1]=1;
	For(i,1,n){
		For(j,1,n+1) qzh[j]=(qzh[j-1]+f[j])%Mod; 
		For(j,l[i],r[i]){
			f[j+1]+=(qzh[j]-qzh[l[i]-1]+Mod);
			f[j+1]%=Mod;
		}
	}
	printf("%lld\n",(f[n+1]+Mod)%Mod);
#ifdef LOCAL
    Debug("\nMy Time: %.3lfms\n", (double)clock() / CLOCKS_PER_SEC);
#endif
	return 0;
}

